Notify user if configuration contains duplicated scrape targets

[grobie]

Given a configuration which contains the same target under several job names, there should be some kind of feedback to the user.

Example:

"jobs" => [
  {
    "name": "foo",
    "address": "qux.address.example"
  },
  {
    "name": "bar",
    "address": "qux.address.example"
  }
]

Idea:
As a simple idea, we could add a warning banner (e.g. bootstrap) to the top of all prometheus server pages in that case. Alternatively such a config could be simply rejected on bootstrap, pending whether there are valid use cases for the quoted config.

[brian-brazil]

This is a valid configuration, for example a server might have multiple roles that require different labels or different scrape parameters.

[fabxc]

Closable?

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.